Light of 3.6 × 108m / sec. falls on a glass prism. The frequency of light is 2 × 103Hz . What will be its frequency after passing through glass prism:
(a) 2 5 10 Hz 3 (b) 3 5 10 Hz 2 (c) 3 2 10 Hz (d) None of the above
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it's option b I think
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